19225763604 has 36 divisors (see below), whose sum is σ = 48610603860. Its totient is φ = 6406986240.

The previous prime is 19225763603. The next prime is 19225763639. The reversal of 19225763604 is 40636752291.

19225763604 is a `hidden beast` number, since 1 + 9 + 2 + 2 + 5 + 7 + 636 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9167679504 + 10058084100 = 95748^2 + 100290^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 19225763604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19225763603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83974 + ... + 213314.

Almost surely, 2^19225763604 is an apocalyptic number.

It is an amenable number.

19225763604 is an abundant number, since it is smaller than the sum of its proper divisors (29384840256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19225763604 is a wasteful number, since it uses less digits than its factorization.

19225763604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133480 (or 133475 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

Adding to 19225763604 its sum of digits (45), we get a square (19225763649 = 138657²).

The spelling of 19225763604 in words is "nineteen billion, two hundred twenty-five million, seven hundred sixty-three thousand, six hundred four".